English

linewalker

From line + walker.

A compound of line + walker

Proto-Germanic *līną ‘flax’

Proto-Germanic *līnǭ ‘line’

Proto-West Germanic *līnā ‘line’

Old English līne ‘line’

Middle English line ‘rope’

English line

Middle English walkere ‘one who walks’

Today it means

noun A person employed to walk along an oil or gas pipeline in search of leaks and other problems.

Language periods are conventional ranges, not dates for this word.

Etymograph / linewalker